@article{chen2020boundary,
  title={A Boundary Regression Model for Nested Named Entity Recognition},
  author={Chen, Yanping and Wu, Lefei and Deng, Liyuan and Qing, Yongbin and Huang, Ruizhang and Zheng, Qinghua and Chen, Ping},
  journal={arXiv preprint arXiv:2011.14330},
  year={2020}
}